318856327405 has 16 divisors (see below), whose sum is σ = 477042194304. Its totient is φ = 198767580480.

The previous prime is 318856327403. The next prime is 318856327483. The reversal of 318856327405 is 504723658813.

It is a happy number.

It is not a de Polignac number, because 318856327405 - 2¹ = 318856327403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318856327403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414098742 + ... + 414099511.

It is an arithmetic number, because the mean of its divisors is an integer number (29815137144).

Almost surely, 2^318856327405 is an apocalyptic number.

318856327405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

318856327405 is a deficient number, since it is larger than the sum of its proper divisors (158185866899).

318856327405 is a wasteful number, since it uses less digits than its factorization.

318856327405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828198276.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 318856327405 in words is "three hundred eighteen billion, eight hundred fifty-six million, three hundred twenty-seven thousand, four hundred five".